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Phase waves of local depolarization in biological tissues object speckle fields.Fundamental and applied aspects
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作者 Yurii Ushenko Alexander Ushenko +9 位作者 Alexander Dubolazov Mykhaylo Gorsky Irina Soltys Olexandra Litvinenko Victor Bachinsky Ivan Mikirin Olexander Salega Ivan Garasim Jun Zheng Lin Bin 《Journal of Innovative Optical Health Sciences》 2025年第5期113-133,共21页
Our gosl was to develop and experimentally validate a polarization-interferene method for phsae scanning of laser speckle fields generated by diffuse layers of birefringent biological tissues.This method isolates and ... Our gosl was to develop and experimentally validate a polarization-interferene method for phsae scanning of laser speckle fields generated by diffuse layers of birefringent biological tissues.This method isolates and uses new diagnostic parameters related to the"phsse WAvEs of local depolarization".We combined polarization-interferenæregistration with phase scanning of complex amplitude distributions in diffuse Laser speckle fields to detect phase waves of local depolarization in birefringent fibrillar networks of biological tisue and messure their modulation depth.This eppгоsch led to the discovery of new criteria for differentiating verious necrotic changes in diffuse histological samples of myocardial tisue from decmsed individuals with"ischemic heart disase(IHD)--cute coronary insufficiency(ACT)",even in the presænce of a high level of depolarized bckground.To evaluate the degree of necrotic changes in the optical anisotropy of difuse myocardial Layers,a new quantitative parameter--modulation depth of local depolarization wave fluctustions-has been proposed.Using this approsch,for the first time,differentiation of diffuse myocardial samples from decessed individuals with IHD and ACI was achieved witha very good 90.45%and outstanding aocuracy of 95.2%. 展开更多
关键词 olarization DEPolarization interference phase scanning optical anisotropy BIREFRINGENCE biological tissue myocardium.
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Mathematical model of micropolar fluid in two-phase immiscible fluid flow through porous channel 被引量:1
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作者 P.K.YADAV S.JAISWAL B.D.SHARMA 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2018年第7期993-1006,共14页
This paper is concerned with the flow of two immiscible fluids through a porous horizontal channel. The fluid in the upper region is the micropolar fluid/the Eringen fluid, and the fluid in the lower region is the New... This paper is concerned with the flow of two immiscible fluids through a porous horizontal channel. The fluid in the upper region is the micropolar fluid/the Eringen fluid, and the fluid in the lower region is the Newtonian viscous fluid. The flow is driven by a constant pressure gradient. The presence of micropolar fluids introduces additional rotational parameters. Also, the porous material considered in both regions has two different permeabilities. A direct method is used to obtain the analytical solu- tion of the concerned problem. In the present problem, the effects of the couple stress, the micropolarity parameter, the viscosity ratio, and the permeability on the velocity profile and the microrotational velocity are discussed. It is found that all the physical parameters play an important role in controlling the translational velocity profile and the microrotational velocity. In addition, numerical values of the different flow parameters are computed. The effects of the different flow parameters on the flow rate and the wall shear stress are also discussed graphically. 展开更多
关键词 micropolar fluid immiscible fluid porous medium couple stress microp=olarity parameter
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Solar Radiation and Temperature Measurement of Solar Dish Concentrator System
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作者 Y. Rafeeu M.Z.A.A. Kadir +1 位作者 S.M. Abdulla N.M. Adam 《Journal of Energy and Power Engineering》 2010年第2期15-19,共5页
Concentrating solar power (CSP) technologies could be one of the major contributor to worlds future energy needs and which would be cheap and clean sources of energy. This would improve energy utilization, higher co... Concentrating solar power (CSP) technologies could be one of the major contributor to worlds future energy needs and which would be cheap and clean sources of energy. This would improve energy utilization, higher conversion efficiency with reliable and affordable supply of electricity to the public. The proposed approach is using 18 inch diameter of solar dish concentrator to measure the solar radiation using the aluminium foil as a reflector. In this paper, solar radiation is collected to investigate the solar fraction on incoming solar energy in wet climate. 展开更多
关键词 Concentrating solar power solar energy olar fraction.
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Magnetocatalysis:The Interplay between the Magnetic Field and Electrocatalysis 被引量:3
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作者 Guowei Li Qun Yang +4 位作者 Kaustuv Manna Qingge Mu Chenguang Fu Yan Sun Claudia Felser 《CCS Chemistry》 CAS 2021年第10期2259-2267,共9页
Magnetic fields are known as clean,economic,and effective tools to modify band and magnetic structures of materials.When coupled with catalytic processes such as the hydrogen evolution reaction(HER),they have the pote... Magnetic fields are known as clean,economic,and effective tools to modify band and magnetic structures of materials.When coupled with catalytic processes such as the hydrogen evolution reaction(HER),they have the potential to control catalytic efficiency.Herein,we studied the magnetic response of a series of materials as HER catalysts,specifically ferromagnetic Co_(2)VGa,Co_(2)MnGa,and Ni,ferrimagnetic Mn_(2)CoGa,and paramagnetic Pt. 展开更多
关键词 magnetic fields electrocata lysis Heusler alloys spin p olarization antibonding states
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